6505168464 has 60 divisors (see below), whose sum is σ = 18792721792. Its totient is φ = 2098440000.

The previous prime is 6505168427. The next prime is 6505168531. The reversal of 6505168464 is 4648615056.

6505168464 is a `hidden beast` number, since 6 + 50 + 516 + 84 + 6 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 724162 + ... + 733089.

Almost surely, 2^6505168464 is an apocalyptic number.

It is an amenable number.

6505168464 is an abundant number, since it is smaller than the sum of its proper divisors (12287553328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6505168464 is a wasteful number, since it uses less digits than its factorization.

6505168464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457296 (or 1457287 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 6505168464 is about 80654.6245667290. The cubic root of 6505168464 is about 1866.7500973481.

The spelling of 6505168464 in words is "six billion, five hundred five million, one hundred sixty-eight thousand, four hundred sixty-four".